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Add to SafariWhen comparing rsync vs Tarsnap, the Slant community recommends rsync for most people. In the question“What are the best backup programs for Linux?” rsync is ranked 3rd while Tarsnap is ranked 9th. The most important reason people chose rsync is:
Only the changed parts of files are synced. For instance, if a long log file increases by just a few lines of text, a small diff will be sent to and saved in the archive. Rsync also compresses data in transit.
Specs
Question Ranking
Pros
Pro Fast and bandwidth efficient
Only the changed parts of files are synced. For instance, if a long log file increases by just a few lines of text, a small diff will be sent to and saved in the archive. Rsync also compresses data in transit.
Pro Works over SSH
SSH support allows sending files securely over the network by encrypting all communcation.
Pro Pre-installed on OSX and most Linux distributions
Many *nix systems bundle rsync so there's nothing to install. All you need to do is open up the terminal and start using rsync.
Pro Free and open source
Licensed under GNU.
Pro Focus on encryption and deduplication
Encryption allows the use to access their files with only their own keys and the deduplication saves on costs of storage as any duplicate file will be removed automatically. So not only is the platform safety minded but cost is taken into account for the user as well.
Pro No need to worry about versioning
Cons
Con No official GUI
To use rsync, you have to know your way around the command line.
Con Complicated, and you can accidentally overwrite the wrong files
Con No automatic deletion of old backups
Users will have to manually delete their old backups as there is no way to set a threshold of when older backups should be removed.
Con Awkward setup of encryption keys
